|Size - diameter excluding winding crown:||38mm|
|Size - length including lugs:||45mm|
Very fine Nivada Grenchen chronomaster aviator sea diver with caliber Valjoux 92, 17 jewels. It is a mechanical hand winding. The dial is black with original hands and minute bars. The luminous are perfect. The watch has a tachymetre and one counter at 3 o’clock indicating the first 5 minutes in red and one counter at 9 o’clock for the second. The bezel comes with a light blue color and is in functioning order. The watch comes with a bombed plastic crystal. The case is screw back in stainless steel with Nivada Grenchen #9989 – 8222 and #3542736 inside the case. The watch is waterproof – incabloc compensamatic. The strap is in plastic/rubber material with Tropic Start writing. The watch is in good condition.
One company that went all-in for explorer-connected watches is Nivada, yet they are all but forgotten today. Once a major Swiss watch company, Nivada was early to bring an automatic watch to market, enjoyed success in chronographs and dive watches, and produced a successful line of chronometers.
Nivada was unable to sell under their own name in the United States after the threat of a name-similarity lawsuit by Movado. They added their home town of Grenchen to the dial and struck a deal with the Croton watch company for distribution. So these watches are often known today as “Nivada Grenchen”, “Croton Nivada”, or just “Croton”, if they are known at all.
In time for International Geophysical Year, Nivada supported the US Navy “Operation Deep Freeze” with a durable waterproof, anti-magnetic watch they named “Antarctic”. This would become one of their signature products, alongside the solid Chronomaster chronograph line.
Movement Nivada with caliber Valjoux 92, 17 jewels.
Diameter excluding winding crown: 38mm
Length including lugs: 45 mm